<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>login</title>
  </head>
  <body>
    英文感叹号，ctrl+y，松手，按逗号
    <form action="">
      <lable>username:</lable>
      <input type="text" name="username">
      <br>
      <lable>password:</lable>
      <input type="password" calue="login">
      <br>
      <input type="button" value="login">
    </form>
  </body>
</html>

